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Note 1: The “Absolute Maximum Ratings” are those values beyond which

the safety of the device cannot be guaranteed. The device should not be

operated at these limits. The parametric values defined in the Electrical

Characteristics tables are not guaranteed at the absolute maximum ratings.

The “Recommended Operating Conditions” table will define the conditions

for actual device operation.

DM74LS161A Recommended Operating Conditions

Supply Voltage

7V

Input Voltage

7V

Operating Free Air Temperature Range

0

°C to +70°C

Storage Temperature Range

−65°C to +150°C

Symbol

Parameter

Min

Nom

Max

Units

Supply Voltage

4.75

5

5.25

V

HIGH Level Input Voltage

2

V

LOW Level Input Voltage

0.8

V

HIGH Level Output Current

−0.4

mA

LOW Level Output Current

8

mA

Clock Frequency (Note 2)

0

25

MHz

Clock Frequency (Note 3)

0

20

MHz

Pulse Width

Clock

20

6

ns

(Note 2)

Clear

20

9

Pulse Width

Clock

25

ns

(Note 3)

Clear

25

Setup Time

Data

20

8

(Note 2)

Enable P

25

17

ns

Load

25

15

Setup Time

Data

20

(Note 3)

Enable P

30

ns

Load

30

Hold Time

Data

0

−3

ns

(Note 2)

Others

0

−3

Hold Time

Data

5

ns

(Note 3)

Others

5

Clear Release Time (Note 2)

20

ns

Clear Release Time (Note 3)

25

ns

Free Air Operating Temperature

0

70

°C